Front-end: enforce qualifiers that cannot appear on block declarations.

Also seems to pick up some white-space (line-ending) test differences with a
prevoius checkin.

Test/310.vert

@@ -123,3 +123,19 @@ out gl_PerVertex {              // ERROR, already used and already redeclared
     highp vec4 gl_Position;
     highp vec4 t;
 };
+
+smooth out smo {                // ERROR, no smooth on a block
+    int i;
+} smon;
+
+flat out fmo {                  // ERROR, no flat on a block
+    int i;
+} fmon;
+
+centroid out cmo {              // ERROR, no centroid on a block
+    int i;
+} cmon;
+
+invariant out imo {             // ERROR, no invariant on a block
+    int i;
+} imon;

Test/baseResults/310.vert.out

@@ -23,7 +23,11 @@ ERROR: 0:109: 'gl_PerVertex' : block redeclaration has extra members
 ERROR: 0:119: 'gl_PointSize' : member of nameless block was not redeclared 
 ERROR: 0:119: 'assign' :  cannot convert from 'const float' to 'gl_PointSize highp void PointSize'
 ERROR: 0:122: 'gl_PerVertex' : can only redeclare a built-in block once, and before any use 
-ERROR: 22 compilation errors.  No code generated.
+ERROR: 0:127: 'flat/smooth/noperspective' : cannot use interpolation qualifiers on an interface block 
+ERROR: 0:131: 'flat/smooth/noperspective' : cannot use interpolation qualifiers on an interface block 
+ERROR: 0:135: 'centroid' : cannot use centroid qualifier on an interface block 
+ERROR: 0:139: 'invariant' : cannot use invariant qualifier on an interface block 
+ERROR: 26 compilation errors.  No code generated.
 
 
 Shader version: 310
@@ -225,6 +229,10 @@ ERROR: node is still EOpNull!
 0:?     'aliased' (layout(location=12 ) smooth out highp int)
 0:?     'inbinst' (in block{in highp int a})
 0:?     'anon@1' (out block{gl_Position highp 4-component vector of float Position gl_Position, })
+0:?     'smon' (smooth out block{out highp int i})
+0:?     'fmon' (flat out block{out highp int i})
+0:?     'cmon' (centroid out block{out highp int i})
+0:?     'imon' (invariant out block{out highp int i})
 0:?     'gl_VertexID' (gl_VertexId highp int VertexId)
 0:?     'gl_InstanceID' (gl_InstanceId highp int InstanceId)
 
@@ -431,6 +439,10 @@ ERROR: node is still EOpNull!
 0:?     'aliased' (layout(location=12 ) smooth out highp int)
 0:?     'inbinst' (in block{in highp int a})
 0:?     'anon@1' (out block{gl_Position highp 4-component vector of float Position gl_Position, })
+0:?     'smon' (smooth out block{out highp int i})
+0:?     'fmon' (flat out block{out highp int i})
+0:?     'cmon' (centroid out block{out highp int i})
+0:?     'imon' (invariant out block{out highp int i})
 0:?     'gl_VertexID' (gl_VertexId highp int VertexId)
 0:?     'gl_InstanceID' (gl_InstanceId highp int InstanceId)
 

Test/baseResults/preprocessor.errors.vert.err

@@ -1,8 +1,8 @@
-Warning, version 310 is not yet complete; most version-specific features are present, but some are missing.
-ERROR: 0:9: '#error' : This should show up in pp output .
-ERROR: 0:14: '#' : invalid directive: def
-ERROR: 0:15: 'preprocessor evaluation' : undefined macro in expression not allowed in es profile Y
-ERROR: 0:21: '' : missing #endif
-ERROR: 4 compilation errors. No code generated.
-
-
+Warning, version 310 is not yet complete; most version-specific features are present, but some are missing.
+ERROR: 0:9: '#error' : This should show up in pp output .  
+ERROR: 0:14: '#' : invalid directive: def
+ERROR: 0:15: 'preprocessor evaluation' : undefined macro in expression not allowed in es profile Y
+ERROR: 0:21: '' : missing #endif 
+ERROR: 4 compilation errors.  No code generated.
+
+

Test/baseResults/preprocessor.success_if_parse_would_fail.vert.out

@@ -1,4 +1,4 @@
-int x(){
-  something that shouldnt compile;
-}
-
+int x(){
+  something that shouldnt compile;
+}
+