Reformat one line functions

Put one line functions in a format compatible with clang-format to give
a more consistent formatting to the code in prop_conv header.

src/solvers/prop/prop_conv.h

@@ -27,10 +27,13 @@ Author: Daniel Kroening, [email protected]
 class prop_convt:public decision_proceduret
 {
 public:
-  explicit prop_convt(
-    const namespacet &_ns):
-    decision_proceduret(_ns) { }
-  virtual ~prop_convt() { }
+  explicit prop_convt(const namespacet &_ns) : decision_proceduret(_ns)
+  {
+  }
+
+  virtual ~prop_convt()
+  {
+  }
 
   // conversion to handle
   virtual literalt convert(const exprt &expr)=0;
@@ -49,15 +52,27 @@ class prop_convt:public decision_proceduret
   virtual void set_frozen(literalt a);
   virtual void set_frozen(const bvt &);
   virtual void set_assumptions(const bvt &_assumptions);
-  virtual bool has_set_assumptions() const { return false; }
-  virtual void set_all_frozen() {}
+
+  virtual bool has_set_assumptions() const
+  {
+    return false;
+  }
+
+  virtual void set_all_frozen()
+  {
+  }
 
   // returns true if an assumption is in the final conflict
   virtual bool is_in_conflict(literalt l) const;
-  virtual bool has_is_in_conflict() const { return false; }
+  virtual bool has_is_in_conflict() const
+  {
+    return false;
+  }
 
   // Resource limits:
-  virtual void set_time_limit_seconds(uint32_t) {}
+  virtual void set_time_limit_seconds(uint32_t)
+  {
+  }
 };
 
 //
@@ -70,9 +85,10 @@ class prop_convt:public decision_proceduret
 class prop_conv_solvert:public prop_convt
 {
 public:
-  prop_conv_solvert(const namespacet &_ns, propt &_prop):
-    prop_convt(_ns),
-    prop(_prop) { }
+  prop_conv_solvert(const namespacet &_ns, propt &_prop)
+    : prop_convt(_ns), prop(_prop)
+  {
+  }
 
   virtual ~prop_conv_solvert() = default;
 
@@ -81,34 +97,50 @@ class prop_conv_solvert:public prop_convt
   decision_proceduret::resultt dec_solve() override;
   void print_assignment(std::ostream &out) const override;
   std::string decision_procedure_text() const override
-  { return "propositional reduction"; }
+  {
+    return "propositional reduction";
+  }
   exprt get(const exprt &expr) const override;
 
   // overloading from prop_convt
   using prop_convt::set_frozen;
-  virtual tvt l_get(literalt a) const override { return prop.l_get(a); }
+  virtual tvt l_get(literalt a) const override
+  {
+    return prop.l_get(a);
+  }
   void set_frozen(literalt a) override
   {
     prop.set_frozen(a);
   }
   void set_assumptions(const bvt &_assumptions) override
-  { prop.set_assumptions(_assumptions); }
+  {
+    prop.set_assumptions(_assumptions);
+  }
   bool has_set_assumptions() const override
-  { return prop.has_set_assumptions(); }
+  {
+    return prop.has_set_assumptions();
+  }
   void set_all_frozen() override
   {
     freeze_all = true;
   }
   literalt convert(const exprt &expr) override;
   bool is_in_conflict(literalt l) const override
-  { return prop.is_in_conflict(l); }
+  {
+    return prop.is_in_conflict(l);
+  }
   bool has_is_in_conflict() const override
-  { return prop.has_is_in_conflict(); }
+  {
+    return prop.has_is_in_conflict();
+  }
 
   // get literal for expression, if available
   virtual optionalt<literalt> literal(const exprt &expr) const;
 
-  virtual void clear_cache() { cache.clear();}
+  virtual void clear_cache()
+  {
+    cache.clear();
+  }
 
   bool use_cache = true;
   bool equality_propagation = true;