Misc semantics fixes:

- don't allow pre-array object versions to return a struct containing an array 
 - special case -2147483648 / -1
 - include "~" in the full integer functionality checks
 - handle multiple function parameters having the same name



git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@24010 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/100.frag

@@ -133,8 +133,17 @@ void foo246()
     texture2DProj(highExt, v[2]);
     texture3D(sExt, vec3(f13));   // ERROR
     texture2DProjLod(sExt, vec3(f13), f13);  // ERROR
+    int a;
+    ~a;    // ERROR
+    a | a; // ERROR
+    a & a; // ERROR
 }
 
 #extension GL_OES_EGL_image_external : disable
 
+int foo203940(int a, float b, float a)  // ERROR, a redefined
+{
+    return a;
+}
+
 uniform samplerExternalOES badExt;  // syntax ERROR