Fix gcc_jit_context_get_last_error docs
gcc/jit/ChangeLog:
* docs/topics/compilation.rst (gcc_jit_result_get_code): Fix typo.
* docs/topics/contexts.rst (gcc_jit_context_get_last_error): The
error buffer is only valid until the next call to the context.
* libgccjit.h (gcc_jit_context_get_first_error): Reword the
comment to omit mention of compiling.
(gcc_jit_context_get_last_error): The error buffer is only valid
until the next call to the context.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@220145 138bc75d-0d04-0410-961f-82ee72b054a4