[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/enhancement/mapping/AbstractMap.fir.txt

@@ -0,0 +1,4 @@
+public abstract class AbstractMap : R|kotlin/Any|, R|kotlin/collections/MutableMap<ft<kotlin/String, kotlin/String?>!, ft<kotlin/String, kotlin/String?>!>| {
+    public constructor(): R|AbstractMap|
+
+}

compiler/fir/analysis-tests/testData/enhancement/mapping/AbstractMap.java

@@ -0,0 +1,3 @@
+public abstract class AbstractMap implements java.util.Map<String, String> {
+
+}