Add missing builtin MapArray to the Go SDK (#4144)

CHANGELOG.md

@@ -6,6 +6,8 @@ CHANGELOG
   [#4109](https://github.com/pulumi/pulumi/pull/4109)
 - Report compile time errors for Go programs during plugin acquisition.
   [#4141](https://github.com/pulumi/pulumi/pull/4141)
+- Add missing builtin `MapArray` to Go SDK.
+  [#4144](https://github.com/pulumi/pulumi/pull/4144)
 
 ## 1.13.0 (2020-03-18)
 - Add support for plugin acquisition for Go programs

sdk/go/pulumi/generate.go

@@ -197,6 +197,12 @@ func makeBuiltins(primitives []*builtin) []*builtin {
 			elementType: "map[string][]" + p.Type,
 			Example:     fmt.Sprintf("%sArrayMap{\"baz\": %sArray{%s}}", name, name, p.Example),
 		})
+		builtins = append(builtins, &builtin{
+			Name:        name + "MapArray",
+			Type:        "[]" + name + "MapInput",
+			elementType: "[]map[string]" + p.Type,
+			Example:     fmt.Sprintf("%sMapArray{%sMap{\"baz\": %s}}", name, name, p.Example),
+		})
 	}
 
 	nameToBuiltin := map[string]*builtin{}