Remove uninteresting corpus entries

spec/fixtures/corpus/arithmetic/main.txt

@@ -1,23 +1,3 @@
-====================
-numbers
-===================
-
-5
-
----
-
-(program (number))
-
-===================
-variables
-===================
-
-x
-
----
-
-(program (variable))
-
 ====================================
 variables with greek letters
 ====================================

spec/fixtures/corpus/c/declarations.txt

@@ -1,28 +1,3 @@
-==========================================
-simple declarations
-==========================================
-
-int x;
-
----
-
-(translation_unit
-  (declaration (identifier) (identifier)))
-
-==========================================
-simple functions
-==========================================
-
-int main() {
-}
-
----
-
-(translation_unit (function_definition
-  (identifier)
-  (function_declarator (identifier))
-  (compound_statement)))
-
 ==========================================
 ambiguous declarations
 ==========================================

spec/fixtures/corpus/cpp/statements.txt

@@ -1,19 +1,3 @@
-==================================================
-simple functions cpp
-==================================================
-
-int main() {
-  x;
-}
-
----
-
-(translation_unit (function_definition
-  (type_specifier (identifier))
-  (declarator (direct_declarator (direct_declarator (identifier))))
-  (function_body (compound_statement
-    (expression_statement (identifier))))))
-
 ==================================================
 function calls
 ==================================================

spec/fixtures/corpus/golang/declarations.txt

@@ -4,6 +4,7 @@ simple declarations
 
 package trivial
 
+var X struct { Y int64 }
 type x int64
 var y = ""
 func z() {}
@@ -11,26 +12,11 @@ func z() {}
 ---
 
 (program
-    (package_directive (package_name))
-    (type_declaration (type_name) (type_name))
-    (var_declaration (var_name) (string))
-    (func_declaration (var_name) (block_statement)))
-
-==========================================
-var declarations
-==========================================
-
-package trivial
-
-var X struct { Y int64 }
-var Z = ""
-
----
-
-(program
-    (package_directive (package_name))
-    (var_declaration (var_name) (struct_type (var_name) (type_name)))
-    (var_declaration (var_name) (string)))
+  (package_directive (package_name))
+  (var_declaration (var_name) (struct_type (var_name) (type_name)))
+  (type_declaration (type_name) (type_name))
+  (var_declaration (var_name) (string))
+  (func_declaration (var_name) (block_statement)))
 
 ==========================================
 comments

spec/fixtures/corpus/javascript/literals.txt

@@ -1,36 +1,17 @@
 ==========================================
-regexes
+primitives
 ==========================================
 
 theFunction(/regex1/, /regex2/g);
-
----
-
-(program (expression_statement
-  (function_call (identifier) (arguments (regex) (regex)))))
-
-==========================================
-numbers
-==========================================
-
 theFunction(100.0, 200);
-
----
-
-(program (expression_statement
-  (function_call (identifier) (arguments (number) (number)))))
-
-==========================================
-strings
-==========================================
-
 theFunction('', "", 'single-quoted-string', "double-quoted-string");
 
 ---
 
-(program (expression_statement
-  (function_call (identifier)
-    (arguments (string) (string) (string) (string)))))
+(program
+  (expression_statement (function_call (identifier) (arguments (regex) (regex))))
+  (expression_statement (function_call (identifier) (arguments (number) (number))))
+  (expression_statement (function_call (identifier) (arguments (string) (string) (string) (string)))))
 
 ==========================================
 function expressions

spec/fixtures/corpus/json/main.txt

@@ -1,43 +1,3 @@
-======================================
-strings with escaped quotes
-======================================
-
-"ok\""
-
----
-
-(string)
-
-======================================
-strings with other escaped characters
-======================================
-
-"ok\n\r\n\\ok"
-
----
-
-(string)
-
-=============================
-floating point numbers
-=============================
-
-3.14
-
----
-
-(number)
-
-===================
-empty arrays
-===================
-
-[]
-
----
-
-(array)
-
 ===================
 arrays
 ===================
@@ -59,16 +19,6 @@ arrays
     (false)
     (object (string) (string)))
 
-====================
-empty objects
-====================
-
-{}
-
----
-
-(object)
-
 ===================
 long objects
 ===================