Mass API rename and clang-reformat (#485)

* Wave 1: upb_fielddef.

* upb_fielddef itself.

* upb_oneofdef.

* upb_msgdef.

* ExtensionRange.

* upb_enumdef

* upb_enumvaldef

* upb_filedef

* upb_methoddef

* upb_servicedef

* upb_symtab

* upb_defpool_init

* upb_wellknown and upb_syntax_t

* Some constants.

* upb_status

* upb_strview

* upb_arena

* upb.h constants

* reflection

* encode

* JSON decode.

* json encode.

* msg_internal.

* Formatted with clang-format.

* Some naming fixups and comment reformatting.

* More refinements.

* A few more stragglers.

* Fixed PyObject_HEAD with semicolon. Removed TODO entries.
diff --git a/upbc/common.h b/upbc/common.h
index 2ea2f7f..08de234 100644
--- a/upbc/common.h
+++ b/upbc/common.h
@@ -13,11 +13,11 @@
  *       names of its contributors may be used to endorse or promote products
  *       derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
@@ -82,7 +82,7 @@
 
   void RefreshOutput() {
     while (size_ == 0) {
-      void *ptr;
+      void* ptr;
       int size;
       if (!stream_->Next(&ptr, &size)) {
         fprintf(stderr, "upbc: Failed to write to to output\n");
@@ -94,7 +94,7 @@
   }
 
   google::protobuf::io::ZeroCopyOutputStream* stream_;
-  char *ptr_ = nullptr;
+  char* ptr_ = nullptr;
   size_t size_ = 0;
 };
 
@@ -109,4 +109,4 @@
 
 }  // namespace upbc
 
-# endif  // UPBC_COMMON_H
+#endif  // UPBC_COMMON_H