Analysis API: move reference resolve testsdata with errors to dedicated folders

analysis/analysis-api/testData/referenceResolve/arrayAccess/withErrors/getFunction.kt

@@ -0,0 +1,5 @@
+fun Int.get(index: Int) = 42
+
+fun f() {
+    1<caret>[2]
+}

analysis/analysis-api/testData/referenceResolve/arrayAccess/withErrors/getFunction.txt

@@ -0,0 +1,2 @@
+Resolved to:
+0: (in ROOT) fun kotlin.Int.get(index: kotlin.Int): kotlin.Int

analysis/analysis-api/testData/referenceResolve/arrayAccess/withErrors/setFunction.kt

@@ -0,0 +1,5 @@
+fun Int.set(index: Int, value: Int) = value
+
+fun f() {
+    1<caret>[2] = 42
+}

analysis/analysis-api/testData/referenceResolve/arrayAccess/withErrors/setFunction.txt

@@ -0,0 +1,2 @@
+Resolved to:
+0: (in ROOT) fun kotlin.Int.set(index: kotlin.Int, value: kotlin.Int): kotlin.Int