Non-functional: Sweep through the stack for consistent with "main" and entry point.

Partially addresses issue #513.

Test/baseResults/120.frag.out

@@ -23,7 +23,7 @@ ERROR: 0:84: 'z' : vector field selection out of range
 ERROR: 0:85: 'assign' :  l-value required 
 ERROR: 0:91: 'int' : overloaded functions must have the same return type 
 ERROR: 0:91: 'main' : function already has a body 
-ERROR: 0:91: 'int' :  main function cannot return a value
+ERROR: 0:91: 'int' :  entry point cannot return a value
 ERROR: 0:92: 'main' : function cannot take any parameter(s) 
 ERROR: 0:94: 'a' : variables with qualifier 'const' must be initialized 
 ERROR: 0:97: 'out' : overloaded functions must have the same parameter storage qualifiers for argument 1

Test/baseResults/420.geom.out

@@ -132,7 +132,7 @@ ERROR: node is still EOpNull!
 
 Linked geometry stage:
 
-ERROR: Linking geometry stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking geometry stage: Missing entry point: Each stage requires one entry point
 ERROR: Linking geometry stage: At least one shader must specify an output layout primitive
 ERROR: Linking geometry stage: At least one shader must specify a layout(max_vertices = value)
 

Test/baseResults/420_size_gl_in.geom.out

@@ -39,7 +39,7 @@ ERROR: node is still EOpNull!
 
 Linked geometry stage:
 
-ERROR: Linking geometry stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking geometry stage: Missing entry point: Each stage requires one entry point
 ERROR: Linking geometry stage: At least one shader must specify an output layout primitive
 ERROR: Linking geometry stage: At least one shader must specify a layout(max_vertices = value)
 

Test/baseResults/430.vert.out

@@ -266,7 +266,7 @@ ERROR: node is still EOpNull!
 
 Linked vertex stage:
 
-ERROR: Linking vertex stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking vertex stage: Missing entry point: Each stage requires one entry point
 ERROR: Linking vertex stage: xfb_stride is too small to hold all buffer entries:
 ERROR:     xfb_buffer 3, xfb_stride 64, minimum stride needed: 80
 

Test/baseResults/440.frag.out

@@ -122,7 +122,7 @@ ERROR: node is still EOpNull!
 
 Linked fragment stage:
 
-ERROR: Linking fragment stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking fragment stage: Missing entry point: Each stage requires one entry point
 
 Shader version: 440
 ERROR: node is still EOpNull!

Test/baseResults/440.vert.out

@@ -160,7 +160,7 @@ ERROR: node is still EOpNull!
 
 Linked vertex stage:
 
-ERROR: Linking vertex stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking vertex stage: Missing entry point: Each stage requires one entry point
 ERROR: Linking vertex stage: xfb_stride is too small to hold all buffer entries:
 ERROR:     xfb_buffer 0, xfb_stride 92, minimum stride needed: 96
 ERROR: Linking vertex stage: xfb_stride must be multiple of 8 for buffer holding a double:

Test/baseResults/450.comp.out

@@ -9,7 +9,7 @@ local_size = (1, 1, 1)
 
 Linked compute stage:
 
-ERROR: Linking compute stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking compute stage: Missing entry point: Each stage requires one entry point
 
 Shader version: 450
 local_size = (1, 1, 1)

Test/baseResults/badChars.frag.out

@@ -17,7 +17,7 @@ ERROR: node is still EOpNull!
 
 Linked fragment stage:
 
-ERROR: Linking fragment stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking fragment stage: Missing entry point: Each stage requires one entry point
 
 Shader version: 100
 ERROR: node is still EOpNull!

Test/baseResults/cppBad.vert.out

@@ -14,7 +14,7 @@ ERROR: node is still EOpNull!
 
 Linked vertex stage:
 
-ERROR: Linking vertex stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking vertex stage: Missing entry point: Each stage requires one entry point
 
 Shader version: 100
 ERROR: node is still EOpNull!

Test/baseResults/dce.frag.out

@@ -138,7 +138,7 @@ Shader version: 400
 
 Linked fragment stage:
 
-ERROR: Linking fragment stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking fragment stage: Missing entry point: Each stage requires one entry point
 
 Shader version: 400
 0:? Sequence

Test/baseResults/errors.frag.out

@@ -1,6 +1,6 @@
 errors.frag
 ERROR: 0:1: 'main' : function cannot take any parameter(s) 
-ERROR: 0:1: 'int' :  main function cannot return a value
+ERROR: 0:1: 'int' :  entry point cannot return a value
 ERROR: 2 compilation errors.  No code generated.
 
 

Test/baseResults/mains1.frag.out

@@ -42,7 +42,7 @@ output primitive = line_strip
 Linked geometry stage:
 
 ERROR: Linking geometry stage: Contradictory output layout primitives
-ERROR: Linking geometry stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking geometry stage: Missing entry point: Each stage requires one entry point
 ERROR: Linking geometry stage: At least one shader must specify an input layout primitive
 ERROR: Linking geometry stage: At least one shader must specify a layout(max_vertices = value)
 

Test/baseResults/noMain.vert.out

@@ -23,7 +23,7 @@ ERROR: node is still EOpNull!
 
 Linked vertex stage:
 
-ERROR: Linking vertex stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking vertex stage: Missing entry point: Each stage requires one entry point
 
 Linked fragment stage:
 

Test/baseResults/nonVulkan.frag.out

@@ -18,7 +18,7 @@ ERROR: node is still EOpNull!
 
 Linked fragment stage:
 
-ERROR: Linking fragment stage: Missing entry point: Each stage requires one "void main()" entry point
+ERROR: Linking fragment stage: Missing entry point: Each stage requires one entry point
 
 Shader version: 450
 ERROR: node is still EOpNull!