Unify the 8 grammar productions for declaring variables. This greatly simplifies making changes for this set of productions.

This change also naturally picks up redeclarations of built-in arrays and the addition of the remaining linker objects of const, arrays, etc.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23246 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/decls.frag

@@ -0,0 +1,34 @@
+#version 120
+
+int a;
+int b, c;
+int d1 = 1;
+int e2 = 2, f;
+int g, h3 = 3;
+
+int i4[4];
+int j, k5[5];
+int m6[6], m7[7];
+int n8[8], p;
+
+int ii4[4] = int[](1, 2, 3, 4);
+int ij, ik5[5] = int[](5, 6, 7, 8, 9);
+int im2[2] = int[](10, 11), im3[3] = int[](12, 13, 14);
+int in8[4] = int[](21, 22, 23, 24), ip;
+
+void vi4[4] = int[](1, 2, 3, 4);
+void vj, vk5[5] = int[](5, 6, 7, 8, 9);
+void vm2[2] = int[](10, 11), vm3[3] = int[](12, 13, 14);
+void vn8[4] = int[](21, 22, 23, 24), vp;
+
+int gl_vi4[4] = int[](1, 2, 3, 4);
+int gl_vj, gl_vk5[5] = int[](5, 6, 7, 8, 9);
+int gl_vm2[2] = int[](10, 11), gl_vm3[3] = int[](12, 13, 14);
+int gl_vn8[4] = int[](21, 22, 23, 24), gl_vp;
+
+void main()
+{
+    while (bool cond = b < c);
+    while (int icond = b);
+    while (bool gl_cond = b < c);
+}