Add function recursion testing to the link-time validation.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23309 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Todo.txt

@@ -20,27 +20,27 @@ Link Validation
 	  - 4.4: A stage contains two different blocks, each with no instance name, where the blocks contain a member with the same name.
     Intra-stage linking
       + exactly one main
-      + type consistency check of uniforms, globals, ins, and outs
-      - value checking of global const initializers
-      - value checking of uniform initializers
-      + location match
-      - component/binding/index/offset match check
-      - location/component aliasing (except desktop vertex shader inputs)
-      - location layout range/overlap semantics
-      - geometry shader input array sizes and input layout qualifier declaration
-      - compute shader layout(local_size_*) matching
-      + mixed es/non-es profiles
-      - recursion for both functions and subroutines
-        - Even the potential for recursion through subroutine uniforms is an error.
-      - block matching
-        - matching redeclarations of interface blocks
-      - read or write to both gl_ClipVertex and gl_ClipDistance
-      - write to only one of gl_FragColor, gl_FragData, or user-declared
+      + Non ES: type consistency check of uniforms, globals, ins, and outs
+      + Non ES: value checking of global const initializers
+      + Non ES: value checking of uniform initializers
+      + Non ES: location match
+      - location aliasing/overlap (except desktop vertex shader inputs)
+      + recursion for functions
+      - Non ES: block matching
+      - Non ES: component/binding/index/offset match check
+      - Non ES: geometry shader input array sizes and input layout qualifier declaration
+      - Non ES: compute shader layout(local_size_*) matching
+      + mixed es/non-es profiles are an error
+      - Non ES: Even the potential for recursion through subroutine uniforms is an error.
+      - Non ES: matching redeclarations of interface blocks
+      - Non ES: read or write to both gl_ClipVertex and gl_ClipDistance
+      - Non ES: write to only one of gl_FragColor, gl_FragData, or user-declared
       - 4.3: Be clear that early_fragment_tests is only needed in one fragment-stage compilation unit.
       - 4.3: Be clear that implicit array sizing is only within a stage, not cross stage.
       - 4.4: overlapping transform/feedback offsets, offset/stride overflow checks, and stride matching
 	  - 4.4: If gl_FragCoord is redeclared in any fragment shader in a program, it must be redeclared in all the fragment shaders in that program that have a static use gl_FragCoord
 	  - 4.4: An interface contains two different blocks, each with no instance name, where the blocks contain a member with the same name.
+	  - 4.4: component aliasing (except desktop vertex shader inputs)
 
 Shader Functionality to Implement/Finish
     ESSL 3.0