Improve preprocessor by using GLSL scanner, allowing read-only strings to be compiled, unifying of line # tracking, and correct detection that ES #version appeared after a comment.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23721 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/baseResults/empty.frag.out

@@ -0,0 +1,30 @@
+empty.frag
+WARNING: #version: statement missing; use #version on first line of shader
+
+0:? Sequence
+0:?   Linker Objects
+
+empty2.frag
+WARNING: #version: statement missing; use #version on first line of shader
+
+0:? Sequence
+0:?   Linker Objects
+
+empty3.frag
+Warning, version 110 is not yet complete; most features are present, but a few are missing.
+
+0:? Sequence
+0:?   Linker Objects
+
+
+Linked fragment stage:
+
+ERROR: Linking fragment stage: Cannot mix ES profile with non-ES profile shaders
+
+ERROR: Linking fragment stage: Cannot mix ES profile with non-ES profile shaders
+
+ERROR: Linking fragment stage: Missing entry point: Each stage requires one "void main()" entry point
+
+0:? Sequence
+0:?   Linker Objects
+

Test/baseResults/versionsClean.frag.out

@@ -1,5 +1,6 @@
 ERROR: #version: statement must appear first in es-profile shader; before comments or newlines
-ERROR: 1 compilation errors.  No code generated.
+ERROR: 0:34: '#version' : must occur first in shader 
+ERROR: 2 compilation errors.  No code generated.
 
 ERROR: node is still EOpNull!
 0:41  Function Definition: main( (void)