revert etorreborre#1112 (etorreborre#1116)

* revert etorreborre#1112

https://github.com/etorreborre/specs2/pull/1112/files
This causes beEqualTo usages with vague types to fail compilation.

* added a test

* fix formatting

* fix formatting 2

* fix compilation

* CR

* format

* small fix

Author: dekelatwix

matcher/shared/src/main/scala/org/specs2/matcher/AnyMatchers.scala

@@ -176,7 +176,7 @@ class BeFalseMatcher extends Matcher[Boolean]:
 
 /** Equality Matcher
   */
-class BeEqualTo[T](t: =>T) extends EqualityMatcher(t)
+class BeEqualTo(t: =>Any) extends EqualityMatcher(t)
 
 /** This matcher always matches any value of type T
   */

tests/shared/src/test/scala/org/specs2/matcher/BeEqualToMatcherSpec.scala

@@ -35,6 +35,10 @@ class BeEqualToMatcherSpec extends Spec with ResultMatchers with ShouldMatchers
   ${"a" must be_!=("b")}
   ${"a" must not(be_!=("a"))}
 
+  Distinguish between typed and non typed equality matchers
+  ${A must be_==("a")}
+  Will not compile: {A must not be_===("a")}
+
   Array equality uses deep array comparison, with or without typed equality
   ${Array(1, 2) must be_==(Array(1, 2))}
   ${Array(1, 2) must be_==(Array(1, 2))}
@@ -122,3 +126,7 @@ Details
 }
 
 case class Hello() { override def toString = "hello" }
+
+object A {
+  override def equals(that: Any) = that == "a"
+}