SLC: fix getTextOffsets and getTextRange for accessors

Same idea from LC fix at 36e1149e

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/methods/SymbolLightAccessorMethod.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.light.classes.symbol.methods
 
+import com.intellij.openapi.util.TextRange
 import com.intellij.psi.*
 import org.jetbrains.kotlin.analysis.api.KtAnalysisSession
 import org.jetbrains.kotlin.analysis.api.KtConstantInitializerValue
@@ -215,4 +216,12 @@ internal class SymbolLightAccessorMethod(
     override fun getDefaultValue(): PsiAnnotationMemberValue? {
         return _defaultValue
     }
+
+    override fun getTextOffset(): Int {
+        return lightMemberOrigin?.auxiliaryOriginalElement?.textOffset ?: super.getTextOffset()
+    }
+
+    override fun getTextRange(): TextRange {
+        return lightMemberOrigin?.auxiliaryOriginalElement?.textRange ?: super.getTextRange()
+    }
 }