Reflect pipeline outputs as well as inputs, optionally from other stages

* We add an option to reflect inputs from other stages than vertex, if only a
  later subset of the stages is linked into the program.

Test/baseResults/hlsl.automap.frag.out

@@ -25,5 +25,8 @@ u6: offset -1, type ffffffff, size 0, index -1, binding 46, stages 0
 cb: offset -1, type ffffffff, size 4, index -1, binding 51, stages 0
 tb: offset -1, type ffffffff, size 4, index -1, binding 17, stages 0
 
-Vertex attribute reflection:
+Pipeline input reflection:
+
+Pipeline output reflection:
+@entryPointOutput: offset 0, type 8b52, size 0, index 0, binding -1, stages 0
 

Test/baseResults/hlsl.reflection.binding.frag.out

@@ -15,5 +15,8 @@ Uniform block reflection:
 cbuff1: offset -1, type ffffffff, size 24, index -1, binding 2, stages 0
 cbuff2: offset -1, type ffffffff, size 24, index -1, binding 3, stages 0
 
-Vertex attribute reflection:
+Pipeline input reflection:
+
+Pipeline output reflection:
+psout.Color: offset 0, type 8b52, size 0, index 0, binding -1, stages 0
 

Test/baseResults/hlsl.reflection.vert.out

@@ -67,10 +67,12 @@ nested: offset -1, type ffffffff, size 32, index -1, binding -1, stages 0
 abl: offset -1, type ffffffff, size 4, index -1, binding -1, stages 0
 abl2: offset -1, type ffffffff, size 4, index -1, binding -1, stages 0
 
-Vertex attribute reflection:
+Pipeline input reflection:
 attributeFloat: offset 0, type 1406, size 0, index 0, binding -1, stages 0
 attributeFloat2: offset 0, type 8b50, size 0, index 0, binding -1, stages 0
 attributeFloat3: offset 0, type 8b51, size 0, index 0, binding -1, stages 0
 attributeFloat4: offset 0, type 8b52, size 0, index 0, binding -1, stages 0
 attributeMat4: offset 0, type 8b5c, size 0, index 0, binding -1, stages 0
 
+Pipeline output reflection:
+

Test/baseResults/hlsl.shift.per-set.frag.out

@@ -226,5 +226,8 @@ u6: offset -1, type ffffffff, size 0, index -1, binding 34, stages 0
 cb: offset -1, type ffffffff, size 4, index -1, binding 51, stages 0
 tb: offset -1, type ffffffff, size 4, index -1, binding 27, stages 0
 
-Vertex attribute reflection:
+Pipeline input reflection:
+
+Pipeline output reflection:
+@entryPointOutput: offset 0, type 8b52, size 0, index 0, binding -1, stages 0
 

Test/baseResults/reflection.frag.out

@@ -0,0 +1,9 @@
+reflection.frag
+Uniform reflection:
+
+Uniform block reflection:
+
+Pipeline input reflection:
+
+Pipeline output reflection:
+

Test/baseResults/reflection.options.frag.out

@@ -0,0 +1,10 @@
+reflection.frag
+Uniform reflection:
+
+Uniform block reflection:
+
+Pipeline input reflection:
+inval: offset 0, type 1406, size 0, index 0, binding -1, stages 0
+
+Pipeline output reflection:
+

Test/baseResults/reflection.options.vert.out

@@ -10,6 +10,9 @@ t[0].v[2].normal[0]: offset 60, type 1406, size 3, index 0, binding -1, stages 1
 Uniform block reflection:
 VertexCollection: offset -1, type ffffffff, size 360, index -1, binding -1, stages 0
 
-Vertex attribute reflection:
+Pipeline input reflection:
 gl_InstanceID: offset 0, type 1404, size 0, index 0, binding -1, stages 0
 
+Pipeline output reflection:
+outval: offset 0, type 1406, size 0, index 0, binding -1, stages 0
+

Test/baseResults/reflection.vert.out

@@ -146,7 +146,7 @@ buf4: offset -1, type ffffffff, size 4, index -1, binding -1, stages 0
 nested2: offset -1, type ffffffff, size 208, index -1, binding -1, stages 0
 VertexCollection: offset -1, type ffffffff, size 360, index -1, binding -1, stages 0
 
-Vertex attribute reflection:
+Pipeline input reflection:
 attributeFloat: offset 0, type 1406, size 0, index 0, binding -1, stages 0
 attributeFloat2: offset 0, type 8b50, size 0, index 0, binding -1, stages 0
 attributeFloat3: offset 0, type 8b51, size 0, index 0, binding -1, stages 0
@@ -154,3 +154,5 @@ attributeFloat4: offset 0, type 8b52, size 0, index 0, binding -1, stages 0
 attributeMat4: offset 0, type 8b5c, size 0, index 0, binding -1, stages 0
 gl_InstanceID: offset 0, type 1404, size 0, index 0, binding -1, stages 0
 
+Pipeline output reflection:
+