misc/bbedit: support for cmplx, real, imag

R=rsc
CC=golang-dev
https://golang.org/cl/582041

misc/bbedit/Go.plist

@@ -12,6 +12,7 @@
 		cap,
 		case,         
 		chan,
+		cmplx,
 		const,
 		continue,
 		default,      
@@ -28,6 +29,7 @@
 		goto,
 		if,
 		iota,
+		imag,
 		import,
 		int,
 		int16,
@@ -42,6 +44,7 @@
 		nil,
 		package,
 		range,
+		real,
 		return,
 		select,
 		string,