fix(#2806): removed mixing notations in vmethod

eo-parser/src/main/antlr4/org/eolang/parser/Eo.g4

@@ -420,22 +420,13 @@ vmethodOptional
 // So in order to avoid it this block was described in more detail
 // Head of vertical method can be:
 // 1. vertical method
-// 2. horizontal method
-// 3. vertical application
-// 4. horizontal application. The same logic as with a vertical application
-// 5. just an object reference
+// 2. vertical application
+// 3. just an object reference
 // Ends on the next line
 vmethodHead
     : vmethodHead methodTailOptional vmethodHeadApplicationTail
     | vmethodHeadVapplication
-    | vmethodHeadCurrent EOL
-    ;
-
-// Head of vertical method that ends on the current line
-vmethodHeadCurrent
-    : vmethodHeadHapplication
-    | vmethodHeadHmethodExtended
-    | justNamed
+    | justNamed EOL
     ;
 
 methodTailOptional
@@ -448,22 +439,13 @@ vmethodHeadApplicationTail
     | happlicationTail oname? EOL
     ;
 
-vmethodHeadHmethodExtended
-    : hmethodOptional oname?
-    ;
-
 // Vertical application as head of vertical method
 // Ends on the next line
 vmethodHeadVapplication
     : (applicable | hmethodOptional | versioned) oname? vapplicationArgs
     | reversed oname? vapplicationArgsReversed
     ;
 
-vmethodHeadHapplication
-    : (applicable | hmethodExtended) happlicationTail oname?
-    | happlicationReversed oname?
-    ;
-
 // Tail of method
 methodTail
     : DOT finisherCopied

eo-parser/src/main/java/org/eolang/parser/XeEoListener.java

@@ -963,16 +963,6 @@ public void exitVmethodHead(final EoParser.VmethodHeadContext ctx) {
         // Nothing here
     }
 
-    @Override
-    public void enterVmethodHeadCurrent(final EoParser.VmethodHeadCurrentContext ctx) {
-        // Nothing here
-    }
-
-    @Override
-    public void exitVmethodHeadCurrent(final EoParser.VmethodHeadCurrentContext ctx) {
-     // Nothing here   
-    }
-
     @Override
     public void enterMethodTailOptional(final EoParser.MethodTailOptionalContext ctx) {
      // Nothing here   
@@ -993,16 +983,6 @@ public void exitVmethodHeadApplicationTail(final EoParser.VmethodHeadApplication
         // Nothing here
     }
 
-    @Override
-    public void enterVmethodHeadHmethodExtended(final EoParser.VmethodHeadHmethodExtendedContext ctx) {
-        // Nothing here
-    }
-
-    @Override
-    public void exitVmethodHeadHmethodExtended(final EoParser.VmethodHeadHmethodExtendedContext ctx) {
-        // Nothing here
-    }
-
     @Override
     public void enterVmethodHeadVapplication(final EoParser.VmethodHeadVapplicationContext ctx) {
         // Nothing here
@@ -1013,16 +993,6 @@ public void exitVmethodHeadVapplication(final EoParser.VmethodHeadVapplicationCo
         // Nothing here
     }
 
-    @Override
-    public void enterVmethodHeadHapplication(final EoParser.VmethodHeadHapplicationContext ctx) {
-        // Nothing here
-    }
-
-    @Override
-    public void exitVmethodHeadHapplication(final EoParser.VmethodHeadHapplicationContext ctx) {
-        // Nothing here
-    }
-
     @Override
     public void enterMethodTail(final EoParser.MethodTailContext ctx) {
         // Nothing here

eo-parser/src/test/resources/org/eolang/parser/typos/hmethod-after-vmethod.yaml

@@ -0,0 +1,4 @@
+line: 2
+eo: |
+  a
+  .b.c

eo-parser/src/test/resources/org/eolang/parser/typos/vmethod-after-happlication.yaml

@@ -0,0 +1,4 @@
+line: 2
+eo: |
+  x y
+  .z

eo-parser/src/test/resources/org/eolang/parser/typos/vmethod-after-hmethod.yaml

@@ -0,0 +1,4 @@
+line: 2
+eo: |
+  x.y
+  .z

eo-runtime/src/test/eo/org/eolang/ram-tests.eo

@@ -92,7 +92,8 @@
         write.
           r.slice 200 13 > s
           "Hello, world!".as-bytes
-        s.slice 0 5
+        s
+        .slice 0 5
         .slice 0 4
         .slice 0 1
   eq. > @