bp2build conversion for rscript srcs in cc modules

Bazel does not support using .rscrip/.fs files as cc srcs.
For a module foo with foo srcs, Bp2build will create a bazel
target of rule class rscript_to_cpp with name foo_renderscript
which will have only the renderscript files as srcs.
Bp2build will also create a target foo with the expected cc rule class.
The foo target will have all other src files as srcs and will also
have the target foo_renderscript as another src.

Bug: 210509914
Test: bp2build testing & b build target rstest-latency
Change-Id: Ifdc55051a3595f5fcf54eab8b59e11e9351e141c
diff --git a/bp2build/cc_binary_conversion_test.go b/bp2build/cc_binary_conversion_test.go
index ab6e4a5..18cb9e1 100644
--- a/bp2build/cc_binary_conversion_test.go
+++ b/bp2build/cc_binary_conversion_test.go
@@ -1182,3 +1182,35 @@
 		},
 	})
 }
+
+func TestCCBinaryRscriptSrc(t *testing.T) {
+	runCcBinaryTests(t, ccBinaryBp2buildTestCase{
+		description: `cc_binary with rscript files in sources`,
+		blueprint: `
+{rule_name} {
+    name : "foo",
+    srcs : [
+        "ccSrc.cc",
+        "rsSrc.rscript",
+    ],
+    include_build_directory: false,
+}
+`,
+		targets: []testBazelTarget{
+			{"rscript_to_cpp", "foo_renderscript", AttrNameToString{
+				"srcs": `["rsSrc.rscript"]`,
+			}},
+			{"cc_binary", "foo", AttrNameToString{
+				"absolute_includes": `[
+        "frameworks/rs",
+        "frameworks/rs/cpp",
+    ]`,
+				"local_includes": `["."]`,
+				"srcs": `[
+        "ccSrc.cc",
+        "foo_renderscript",
+    ]`,
+			}},
+		},
+	})
+}