[LL API] Run fir2ir separately for files in different modules

Each module may have its own compiler configuration.

^KTIJ-27061 Fixed

analysis/analysis-api/testData/components/compilerFacility/compilationMultiModule/commonUsage.txt

@@ -0,0 +1,4 @@
+public final class MainKt {
+    // source: 'main.kt'
+    public final static method test(): void
+}