Previously, any of the build commands (mma, mmma, etc...) would traverse
up the directory path until an Android build file has been found. That
directory path would eventually become the MODULES-IN-<dir name> build
target. The directory where the m* command was executed may contain a
build file in a sub directory. For that case, the build target is the
MODULES-IN-<dir name> where dir is the directory of the executed m*
command since the target has been constructed by the core makefile.
Bug: b/118730755
Test: Wrote and ran unit test cases. Ran "lunch", "m". Went to a
directory in AOSP that had build files in sub directories and
executed mma. Went to a directory that had only build files in
parent directories and executed mma.
Change-Id: I9458cbc4bf0fc25bfb0848e96e92d261442d5cb0
0dcf27f639