fixed position on error coming from ImplicitParam

Author: ghik

commons-macros/src/main/scala/com/avsystem/commons/macros/meta/MacroMetadatas.scala

@@ -4,7 +4,6 @@ package macros.meta
 import com.avsystem.commons.macros.misc.{Fail, Ok, Res}
 
 import scala.annotation.StaticAnnotation
-import scala.reflect.{ClassTag, classTag}
 
 trait MacroMetadatas extends MacroSymbols {
 
@@ -152,7 +151,7 @@ trait MacroMetadatas extends MacroSymbols {
           if (checked)
             tryInferCachedImplicit(tpe).map(n => Ok(q"$n")).getOrElse(Fail(implicitNotFound(tpe)))
           else
-            Ok(q"${infer(tpe)}")
+            Ok(q"${infer(tpe, matchedSymbol.real)}")
         case ParamArity.Optional(tpe) =>
           Ok(mkOptional(tryInferCachedImplicit(tpe).map(n => q"$n")))
         case _: ParamArity.Multi =>

commons-macros/src/main/scala/com/avsystem/commons/macros/meta/MacroSymbols.scala

@@ -101,8 +101,8 @@ trait MacroSymbols extends MacroCommons {
     def infer(tpt: Tree): TermName =
       infer(getType(tpt))
 
-    def infer(tpe: Type): TermName =
-      inferCachedImplicit(tpe, s"$problemStr: ", pos)
+    def infer(tpe: Type, forSym: MacroSymbol = this): TermName =
+      inferCachedImplicit(tpe, s"${forSym.problemStr}: ", forSym.pos)
 
     val name: TermName = symbol.name.toTermName
     val safeName: TermName = c.freshName(symbol.name.toTermName)