Merge pull request #14 from braised-babbage/optional-scalar-type-for-complex

Make scalar type optional for complex

Author: psivaraj

source/grammar/openpulseParser.g4

@@ -50,7 +50,7 @@ scalarType:
     | BOOL
     | DURATION
     | STRETCH
-    | COMPLEX LBRACKET scalarType RBRACKET
+    | COMPLEX (LBRACKET scalarType RBRACKET)?
     | WAVEFORM
     | PORT
     | FRAME