Multiple changes to get a triangle working with hacky usage of descriptor heaps

samples/descriptor_heap/shaders/heap_triangle.frag

@@ -1,9 +1,10 @@
 #version 450
-
 #pragma shader_stage(fragment)
 
+#extension GL_EXT_descriptor_heap: require
+
 layout(location = 0) out vec4 outColor;
 
 void main() {
     outColor = vec4(0.f, 1.f, 0.f, 1.f);
-}
+}

samples/descriptor_heap/shaders/heap_triangle.vert

@@ -1,16 +1,12 @@
 #version 450
 #pragma shader_stage(vertex)
 
-in layout(location=0) vec2 position;
+#extension GL_EXT_descriptor_heap: require
 
-layout(set=0, binding=0) uniform data {
+layout(descriptor_heap) uniform data {
   vec4 positions[3];
-} vertexData;
+} vertexData[];
 
 void main() {
-    // gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
-    // gl_Position = vec4(position, 0.0, 1.0);
-    // gl_Position = vec4(inputData.positions[gl_VertexIndex], 0.0, 1.0);
-    gl_Position = vertexData.positions[gl_VertexIndex];
-    // gl_Position = vec4(position, 0.0, 1.0);
+  gl_Position = vertexData[0].positions[gl_VertexIndex];
 }