GLSL: Inherit memory qualifiers, both declaratively and in execution.

Fixes #1870, probably others.

Test/310.inheritMemory.frag

@@ -0,0 +1,43 @@
+#version 310 es
+precision mediump float;
+
+struct S {
+    float buff[10];
+};
+
+layout(std430, binding=2) readonly buffer RoBuff {
+    float buff_ro[10];
+    S s_ro;
+} ro_buffer;
+
+layout(std430, binding=2) buffer Buff {
+    float buff[10];
+    S s;
+} non_ro_buffer;
+
+void non_ro_fun(float[10] buff) { }
+void non_ro_funf(float el) { }
+void non_ro_funS(S s) { }
+
+out vec4 fragColor;
+
+void main()
+{
+    S s;
+
+    non_ro_fun(s.buff);
+    non_ro_funf(s.buff[3]);
+    non_ro_funS(s);
+
+    non_ro_fun(non_ro_buffer.buff);
+    non_ro_fun(non_ro_buffer.s.buff);
+    non_ro_funf(non_ro_buffer.buff[3]);
+    non_ro_funf(non_ro_buffer.s.buff[3]);
+    non_ro_funS(non_ro_buffer.s);
+
+    non_ro_fun(ro_buffer.buff_ro);
+    non_ro_fun(ro_buffer.s_ro.buff);
+    non_ro_funf(ro_buffer.buff_ro[3]);
+    non_ro_funf(ro_buffer.s_ro.buff[3]);
+    non_ro_funS(ro_buffer.s_ro);
+}