Better support for using the proto library from a framework.

- Add generator constant for the default framework name.
- Add generator api for making the CPP symbol from the name.
- Add generator api to see if it is a bundled proto file.
- Output a CPP conditional and two imports for the core library headers.
- Add helper for generating the #import for file headers to deal with the
  framework imports.
- Add a reference from the unittests to a WKT to use that to inspect how
  imports generate.
- Update the podspec to define the CPP symbol and require pods 1.0 (or later).

Fixes https://github.com/google/protobuf/issues/1457

1 files changed, 9 insertions, 0 deletions

diff --git a/objectivec/Tests/unittest_objc.proto b/objectivec/Tests/unittest_objc.proto
index f6ab6a24..914945eb 100644
--- a/objectivec/Tests/unittest_objc.proto
+++ b/objectivec/Tests/unittest_objc.proto
@@ -29,6 +29,7 @@
 
 syntax = "proto2";
 
+import "google/protobuf/any.proto";
 import "google/protobuf/unittest.proto";
 
 package protobuf_unittest;
@@ -447,3 +448,11 @@ message BoolOnlyMessage {
   optional bool bool_field_31 = 31;
   optional bool bool_field_32 = 32;
 }
+
+// Reference to a WKT to test (via generated code inspection), the handling
+// of #imports.  Within the WKTs, references to each other are just path
+// based imports, but when reference from another proto file, they should be
+// conditional to support the framework import style.
+message WKTRefereceMessage {
+  optional google.protobuf.Any an_any = 1;
+}