init commit

test/parse/wrong_multiply.golden

@@ -0,0 +1,7 @@
+(program	
+ (fun vertex vs_main -> float4 (@position)
+  [(:= pos float4 (@position))] 
+  (:= res float2 (float2 2 2)) 
+  (:= foo float 1) 
+  (:= result float4 (float4 1 (* foo res) 0 1)) 
+  (return result)))