Fix reference resolve in assignment statements, fixing reassignment to val highlighting.
Fix reference resolve in assignment statements, fixing reassignment to val highlighting.

LPTK/intellij-scala,LPTK/intellij-scala,JetBrains/intellij-scala-historical,consulo/consulo-scala,triggerNZ/intellij-scala,SergeevPavel/intellij-scala,LPTK/intellij-scala,triggerNZ/intellij-scala,SergeevPavel/intellij-scala,JetBrains/intellij-scala-historical,SergeevPavel/intellij-scala,JetBrains/intellij-scala-historical,triggerNZ/intellij-scala