Change rules for RS name reflection.

We now keep any alphanumeric or underscore characters unchanged for
the classname. Nonmatching characters (like hyphens) get stripped
out (as they were previously). We no longer camel-case the reflected
names. Resource names are converted to lowercase, since that is a
system requirement.

Change-Id: Idf7a7c3f9442bb58789769d58088c2038a074455
diff --git a/slang_rs_reflect_utils.hpp b/slang_rs_reflect_utils.hpp
index 7324565..5151c82 100644
--- a/slang_rs_reflect_utils.hpp
+++ b/slang_rs_reflect_utils.hpp
@@ -36,20 +36,20 @@
                                          const char* packageName);
 
   // Compute Java class name from a .rs file name.
-  // Any non-alnum character will be discarded. The result will be camel-cased.
-  // Eg, with rsFileName=./foo/bar/my_renderscript_file.rs it returns
-  // "MyRenderscriptFile".
+  // Any non-alnum, non-underscore characters will be discarded.
+  // E.g. with rsFileName=./foo/bar/my-Renderscript_file.rs it returns
+  // "myRenderscript_file".
   // rsFileName: the input .rs file name (with or without path).
   static std::string JavaClassNameFromRSFileName(const char* rsFileName);
 
   // Compute a bitcode file name (no extension) from a .rs file name.
   // Because the bitcode file name may be used as Resource ID in the generated
-  // class (something like R.raw.<bitcode_filename>), Any non-alnum character
-  // will be discarded.
+  // class (something like R.raw.<bitcode_filename>), Any non-alnum,
+  // non-underscore character will be discarded.
   // The difference from JavaClassNameFromRSFileName() is that the result is
-  // not converted to camel case.
-  // Eg, with rsFileName=./foo/bar/my_renderscript_file.rs it returns
-  // "myrenderscriptfile"
+  // converted to lowercase.
+  // E.g. with rsFileName=./foo/bar/my-Renderscript_file.rs it returns
+  // "myrenderscript_file"
   // rsFileName: the input .rs file name (with or without path).
   static std::string BCFileNameFromRSFileName(const char* rsFileName);