Move C runtime source directories into runtime/src/iree. (#8950)
* Pries apart the global include directory situation on both the Bazel and CMake side. On Bazel, we use a new iree_runtime_cc_(library|binary) macro that adds an implicit dep for include propagation and (in the future) can set copts.
* On the CMake side, we use a path-based implicit dep to similar effect. I tried a couple of other ways and this was the least intrusive.
* Reworks bazel_to_cmake target rewriting to account for the new split root.
* Removes the CMake DATA include::this:file.png style of data includes (used in one place) in favor of a path, since package names are no longer reversible to a location. This seems to be the only place we made that assumption.
* Will do a couple more followups to completely retire the iree/iree directory (in favor of top-level compiler/ and tools/ directories).
Progress on #8955
diff --git a/runtime/CMakeLists.txt b/runtime/CMakeLists.txt
index 8a3ce7a..de8151c 100644
--- a/runtime/CMakeLists.txt
+++ b/runtime/CMakeLists.txt
@@ -4,6 +4,8 @@
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+add_subdirectory(src)
+
if(IREE_BUILD_PYTHON_BINDINGS)
# Copy Python packaging files to the build dir so that we can install from
# there.
