build crashes when encountering special files

[dante]

Running a 1.7 build against a working 1.6.1 codebase as a regression tests caused some issues.

src/myns/tests/nls/foo.txt

is found to be an nls bundle, and is parsed as such. This causes the build to crash and the proc to zombie. This is an incidental, because of the presence of /nls/ in the filename, despite being in /tests/ and having a .txt extension.

there are two places in writeAmd transform which use input in an unchecked manner, causing the process to crash. they are triggered by the above file.

simply adding a bit of truthy checking allows the build to successfully process over the 1.6.1 codebase and nearly perfectly wraps the whole application in AMD format.

patch defending against undefined usage attached

[Rawld Gill]

In [26700]:

make writeAmd more-gentle with non-amd resources; fixes #13954; thanks dante; fix typo; thanks chris barber; !strict