Deprecate implicit make rules

# Build System Changes for Android.mk Writers

## Implicit make rules are deprecated {#implicit_rules}

Implicit rules look something like the following:

``` make

$(TARGET_OUT_SHARED_LIBRARIES)/%_vendor.so: $(TARGET_OUT_SHARED_LIBRARIES)/%.so

	...

%.o : %.foo

	...

```

These can have wide ranging effects across unrelated modules, so they're now deprecated. Instead, use static pattern rules, which are similar, but explicitly match the specified outputs:

``` make

libs := $(foreach lib,libfoo libbar,$(TARGET_OUT_SHARED_LIBRARIES)/$(lib)_vendor.so)

$(libs): %_vendor.so: %.so

	...

files := $(wildcard $(LOCAL_PATH)/*.foo)

gen := $(patsubst $(LOCAL_PATH)/%.foo,$(intermediates)/%.o,$(files))

$(gen): %.o : %.foo

	...

```

## Removing '/' from Valid Module Names {#name_slash}

The build system uses module names in path names in many places. Having an

# libraries have already been linked into the module at that point.

# We do, however, care about the NOTICE files for any static

# libraries that we use. (see notice_files.mk)

#

# Don't do this in mm, since many of the targets won't exist.

ifeq ($(ONE_SHOT_MAKEFILE),)

installed_static_library_notice_file_targets := \

    $(foreach lib,$(my_static_libraries) $(my_whole_static_libraries), \

      NOTICE-$(if $(LOCAL_IS_HOST_MODULE),HOST,TARGET)-STATIC_LIBRARIES-$(lib))

else

installed_static_library_notice_file_targets :=

endif

# Default is -fno-rtti.

ifeq ($(strip $(LOCAL_RTTI_FLAG)),)

# would have been with a normal make.

CUSTOM_MODULES := $(sort $(call get-tagged-modules,$(ALL_MODULE_TAGS)))

FULL_BUILD :=

# Stub out the notice targets, which probably aren't defined

# when using ONE_SHOT_MAKEFILE.

NOTICE-HOST-%: ;

NOTICE-TARGET-%: ;

# A helper goal printing out install paths

define register_module_install_path